#include"sd.h"
int main()
{
	int end = 1, result;
	while (end) {
		system("cls");
		result = menu();
		switch (result) 
		{
			case 1:
				guest();
				break;
			case 2:
				administrator();
				break;
			case 3:
				about();
				break;
			default:
				return 0;
		}
	}
	return 0;
}